TUV CERTIFIED Surge Protective Device DC1000V Surge Protector Intelligent Surge Protection Device SPD

Quick Detail:

1. SPD,surge protector
2. protect against lightning surge voltages in solar system (photovoltaic power supply system)

Description:

WD2H-PVS Surge Protector: The Engineered Guardian for Photovoltaic and Critical DC Systems

In the rapidly evolving landscape of renewable energy and advanced electronics, the reliability of direct current (DC) power systems is paramount. From sprawling solar photovoltaic (PV) farms and cutting-edge energy storage systems to essential telecommunications infrastructure and industrial control panels, these systems represent significant capital investment and are critical to operational continuity. They are, however, uniquely vulnerable to a silent and pervasive threat: transient voltage surges. These electrical spikes, originating from lightning strikes, grid fluctuations, or internal switching events, can inflict instantaneous and catastrophic damage on sensitive components like PV inverters, charge controllers, and DC power supplies. The WD2H-PVS Surge Protector is meticulously engineered as the definitive defensive solution for these DC applications. It transcends the role of a simple component, acting instead as a sophisticated system safeguard designed to ensure the resilience, longevity, and optimal performance of your most valuable electrical assets.

Certified Excellence: Built to the Rigorous EN 50539-11 Standard for PV Systems

The cornerstone of the WD2H-PVS's credibility is its explicit design and testing conformity to EN 50539-11. This is not a general safety standard but a specialized European norm dedicated solely to surge protective devices for photovoltaic applications. Compliance with this standard is a critical differentiator. It certifies that the device has been evaluated under real-world PV-specific conditions, including continuous exposure to DC voltage—a factor that can degrade generic SPDs not designed for this purpose. The standard validates its performance with the unique waveforms and environmental stresses found in solar installations. By adhering to EN 50539-11, the WD2H-PVS provides system designers, installers, and asset owners with verified, third-party assurance of its suitability and reliability, moving beyond marketing claims to deliver certified protection for the heart of a solar power generation system.

Precision-Tuned Electrical Performance for a Range of DC Voltages

The WD2H-PVS series is offered in a versatile range of models to match the precise requirements of diverse DC systems. Its key electrical parameters demonstrate a balance of robust protection and precise operation:

• Maximum Continuous Operating Voltage (Uc): The series covers essential voltage tiers with Uc ratings of 600VDC, 800VDC, and 1000VDC, making it ideal for the DC sides of commercial and utility-scale PV string inverters. A specialized 12/24VDC model is also available, extending its protection to critical low-voltage applications such as off-grid systems, telecommunication sites, and security installations.
• High-Capacity Surge Diversion: Every model in the series features a substantial Nominal Discharge Current (In) of 20 kA (8/20µs). This indicates a robust capacity to repeatedly handle common high-energy surge events over its service life. For extreme, high-magnitude transients, the Maximum Discharge Current (Ima*) is rated at 40 kA (8/20µs), ensuring the protector can safely divert massive surge energies to ground without failure, even under severe strike conditions.

Superior Protection Level: Ensuring the Safety of Sensitive Downstream Equipment

The ultimate measure of an SPD's effectiveness is the residual voltage that reaches protected equipment after it activates, known as the Voltage Protection Level (Up). The WD2H-PVS excels in this critical metric by maintaining impressively low Up values. The 600VDC model clamps at 2.2 kV, the 800VDC at 3.0 kV, and the 1000VDC at 3.8 kV. The 12/24VDC model offers exceptional protection at just 0.2/0.4 kV. These low clamping voltages are vital for protecting modern, sensitive electronics within inverters and controllers, which have increasingly tight voltage tolerances. By limiting transient overvoltage to these low levels, the WD2H-PVS ensures that expensive downstream equipment is shielded from damaging electrical stress, directly safeguarding the system's financial return and minimizing the risk of unscheduled downtime.

Flexible Configuration and Type II Classification for Comprehensive Protection

Available in standard 2P and 3P configurations, with options for customized 2P designs, the WD2H-PVS provides adaptable solutions for different system grounding schemes. This allows for protection between DC positive and negative poles, and where necessary, from poles to ground. Its clear designation as a Type II (Class II) SPD confirms its intended application: for installation at the main distribution or sub-distribution level within a facility's DC wiring. A Type II protector is tested to manage the partial surge currents that penetrate a building's primary lightning protection zone, making it the ideal, standards-compliant choice for the secondary protection of PV arrays and DC distribution boards.

Designed for Durability and Seamless Integration

Engineered for the demanding conditions of both industrial and outdoor environments (commonly in enclosures), the WD2H-PVS is built for long-term reliability. Its design prioritizes safe operation, with features typically including a clear visual status indicator for at-a-glance functional verification and a fail-safe thermal disconnection mechanism. Its construction is likely optimized for efficient heat dissipation during surge events. The device is designed for straightforward installation, typically via DIN rail mounting, ensuring secure and organized integration into any distribution cabinet or combiner box.

Conclusion: A Strategic Investment in System Resilience and ROI

The WD2H-PVS Surge Protector is more than a protective device; it is a strategic investment in the total cost of ownership and operational security of any DC-powered system. For solar farm operators, it protects the central inverters—the core revenue-generating assets of the plant. For industrial facilities, it secures the continuity of automated processes by shielding vulnerable PLCs and DC drives. By selecting the WD2H-PVS, specifiers and engineers choose a product defined by certified compliance (EN 50539-11), high-performance surge diversion (up to 40kA Imax), and superior equipment protection (low Up). It delivers not just functionality, but peace of mind, ensuring that modern energy and technological infrastructures are fortified against electrical disturbances, thereby maximizing uptime, protecting financial returns, and guaranteeing long-term, dependable performance.

Applications:

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Competitive Advantage:

Advantages of Wenzhou DAQUAN Electric Co., Ltd

1. Innovation Leadership

With 258 patents and 27 years of industry experience, we lead in R&D of industrial control devices like relays and timers, ensuring cutting-edge product performance.

2. Global Certifications

Our products hold CE, ROHS, IEC, TUV certifications plus ISO9001, meeting strict international standards for seamless global market access.

3. Scale Supply Stability

Backed by a 7,800m2 factory, 499-strong team, and 70M RMB annual output, we guarantee efficient production and timely delivery for bulk orders.